The whole concept of a progressive tax is based on the idea that 10% for the poor is the difference between freezing to death in their home or starving. Don't tell me it doesn't happen. It did. While 10% for the rich is the difference between what model of car they might pick. Progressive taxes also work the same for everyone. No body pays on the first 8,000 dollars (using a number here not exact), and then everyone pays something like 10% from 8,0001 to 32,000. It's not like we take the rich's income and force it into the last bracket, it's spread out over all the brackets. so those who say they are paying say 40-50%, that might be their average but they are still getting that first 8,000 tax free. And for those idiots (not referring to anyone here, as far as I know this arugment hasn't come up here yet)who whine about working more and all their money going to taxes if they get put into another tax bracket, that's not how it works. If there is a tax bracket that is 10% up to 35,000 and it jumps to 15% after that and you make 35,001, guess what, you are paying 15% on 1 dollar, 1 dollar.
Where the tax code gets messy is all the deduction's and the credits and the exemptions, and guess what, most of those were pushed for by lobbyist, and while certain poor groups have lobbyist, there are a heck a lot more on the other end.
If you want to talk about tax inequalities, let's talk about the single tax payer versus the married and those with families. In some cases the married might wind up with higher taxes but in most cases, no. And those with kids, why should other tax payers fit the bill for your reproduction. They already fit the bill for things like education and in many cases, health insurance for the low income children. And what about people with houses, why should anyone have to help others with their mortgages? Or public transportation, bike trails, national parks. Heck I am sure if we go down the list far enough we'll eventually hit something you care about and there is the problem.
The tax problem isn't our tiered system its what happens when people get ahold of it and put what they care about in the tax code.
By the way, there is nothing wrong the USD or anything inherently evil with debt, but if anyone is no longer interested in the USD I will be happy to take them off your hands.